[R] glm for nominal X ordinal

[Gang Chen]

Suppose I have a two-way table of nominal category (party  
affiliation) X ordinal category (political ideology):

party affiliation X (3 levels) - democratic, independent, and republic
political ideology Y (3 levels) - liberal, moderate, and conservative

The dependent variable is the frequency (or count) for all the two- 
way cells sampled from the voters. I want to test whether there is  
any party affiliation effect, and, if there is, the pair-wise  
contrasts. I have never used glm (I assume this the program I should  
use) before, so I am not so sure how I can code the two independent  
variables reflecting the fact that one is nominal while the other is  
ordinal and how to formulate the model.

Any help is highly appreciated,
Gang